Where there is a will there is a way......Have always followed you coding examples to use myself and playing with the Particle Photon that was a major thread on testing for Nitrates,Nitrites and Ammonia.

89delta wrote:Where there is a will there is a way......Have always followed you coding examples to use myself and playing with the Particle Photon that was a major thread on testing for Nitrates,Nitrites and Ammonia.

89delta wrote:Where there is a will there is a way......Have always followed you coding examples to use myself and playing with the Particle Photon that was a major thread on testing for Nitrates,Nitrites and Ammonia.

I've searched around and the way to sense dissolved CO2 in water is to get a NDIR that senses CO2 gas and wrap it with a CO2 permeable membrane but impermeable to water such as expanded polytetrafluoroethylene(PTFE) tube or sleeve. It's explained in the paper that I linked. From the CO2 number and pH we can calculate the alkalinity in code.